Most of the time you will work with your presentation in color. However, if you plan to print the presentation in black and white or grayscale (for example, on overhead transparencies or black-and-white handouts), you should check to see what it will look like without color.

This Color/Grayscale/Pure Black and White option is especially useful when you are preparing slides that will eventually be faxed, because a fax is pure black and white in most cases. Something that looks great on a color screen could look like a shapeless blob on a black-and-white fax. It doesn’t hurt to check.

Click the Grayscale or the Pure Black and White button on the View tab to switch to one of those views. When you do so, a Grayscale or Black and White tab becomes available, as shown in Figure 20-17. From its Setting group, you can fine-tune the grayscale or black-and-white preview. Choose one that shows the object to best advantage; PowerPoint will remember that setting when printing or outputting the presentation to a grayscale or black-and-white source.

FIGURE 20-17
Select a grayscale or a black-and-white preview type.

When you are finished, click the Back to Color View button on the Grayscale tab. Changing the Black and White or Grayscale settings doesn’t affect the colors on the slides; it only affects how the slides will look and print in black and white or grayscale.

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